Tonight a "feed frenzy" for the record after kanye west placed himself at the top of the music hierarchy in a bbc radio one interview. We the real rock stars and I'm the biggest of all of them. Jimmy kimmel responded showing us what those words sound like coming from a far smaller individual. We the rock stars. And I'm the biggest of all of them. Kanye not amused with jimmy's spoof. After all according to kanye that interview was the first piece of honest media in years. Followed was a kanye kimmel social media battle. Finally I am in a rap feud. One that turned vicious. Many tweets too graphic for television. "The new york times" set the record straight on mario luigi from the super mario brothers games. In an obituary for the president, the times misstated the duo's all important professions. Quote, the brothers mario and luigi who appear in this and nintendo games are plumbers not janitors. Oh, no. And a record breaker threw his final pitch at yankees stadium last night. When mariano rivera was taken out not by the manager, his long time teammates. He lost it. We have seen a lot of athletes come and go over the years but this one left many in tears.

This transcript has been automatically generated and may not be 100% accurate.

{"id":20403992,"title":"Feed Frenzy: The Greatest","duration":"3:00","description":"In an interview with the BBC, Kanye West boasted he was the No. 1 rock star on Earth.","url":"/Nightline/video/feed-frenzy-greatest-20403992","section":"Nightline","mediaType":"Default"}